Saltwater Fuel Cell Robot

$30.00

Build a sleek, modern (and adorable!) walking robot powered by salt water and magnesium — no batteries required! 

Discover how a metal-air electrochemical cell stores and discharges electrical energy using a simple saltwater solution. Explore the science of electricity, currents, and electric potential. An innovative pump mechanism provides a steady drip of salt water onto the magnesium plates and the robot walks for up to one hour on just one drop of salt water! The “fuel” bottle is easy to clean, refill, and reuse for hours of exploration.

A full-color manual includes step-by-step assembly instructions and delves into how this green technology offers a truly safe, non-toxic, long-lasting, and renewable source of energy.

Ages 8 and up

Shipping Information

📪️ All shipping orders are sent from Portland. Items must be available in the Portland store in order to process a shipping order.

📪️ We ship via UPS

📪️ Orders are processed daily, and picked up for transit Monday-Friday

📪️ Flat Rate $9.95

Include a greeting card

Saltwater Fuel Cell Robot STEM kit shows a blue and white walking robot powered by salt water and magnesium.
Thames & Kosmos

Saltwater Fuel Cell Robot

$30.00

Build a sleek, modern (and adorable!) walking robot powered by salt water and magnesium — no batteries required! 

Discover how a metal-air electrochemical cell stores and discharges electrical energy using a simple saltwater solution. Explore the science of electricity, currents, and electric potential. An innovative pump mechanism provides a steady drip of salt water onto the magnesium plates and the robot walks for up to one hour on just one drop of salt water! The “fuel” bottle is easy to clean, refill, and reuse for hours of exploration.

A full-color manual includes step-by-step assembly instructions and delves into how this green technology offers a truly safe, non-toxic, long-lasting, and renewable source of energy.

Ages 8 and up

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